package com.kaifamiao.www.demo.do0809.ex;

public class Demo05 {
    public static void main(String[] args) {
        a();
    }
    public static void a(){
        b();
        throw new ArithmeticException("a");
    }
    public static void b(){
        c();
        throw new IndexOutOfBoundsException("b");
    }
    public static void c(){
        d();
        throw new NullPointerException("c");
    }
    public static void d(){
        throw new RuntimeException("d");
    }
}
